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Finding the Third Proportional to 9,987 and 14,788.50

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Solution

The third proportional to 9,987 and 14,788.50 is: 21,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987 : 14,788.50 = 14,788.50 : x
  2. Step 2: Convert to fraction form
    9,987/14,788.50 = 14,788.50/x
  3. Step 3: Cross multiply
    9,987x = 14,788.50 × 14,788.50
  4. Step 4: Simplify right side
    9,987x = 218,699,732.25
  5. Step 5: Solve for x
    x = 218,699,732.25/9,987
  6. Step 6: Final answer
    x = 21,898.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.